Trace number 1523934

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Hybrid2 2009-03-22SAT 0.937856 0.9389

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S23858409-056.cnf
MD5SUM1d9e0ed32c3bf3bc5fbb21926c01a19c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.065989
Satisfiable
(Un)Satisfiability was proved
Number of variables540
Number of clauses2295
Sum of the clauses size6885
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32295
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.89/0.93	c try 1 flip j 792562
0.89/0.93	c A solution is found
0.89/0.93	s SATISFIABLE
0.89/0.93	v -1 -2 -3 -4 5 -6 -7 -8 9 10 11 -12 -13 -14 -15 16 -17 -18 -19 -20 21 22 23 24 -25 26 -27 28 -29 -30 31 32 33 -34 35 -36 -37 38 -39 -40 -41 42 43 -44 45 -46 -47 -48 49 -50 -51 -52 -53 -54 55 56 -57 -58 -59 60 -61 -62 63 64 65 66 -67 68 69 -70 71 72 73 74 -75 76 -77 -78 -79 80 81 -82 83 84 -85 86 -87 -88 -89 -90 -91 92 93 -94 95 -96 -97 -98 -99 100 -101 -102 103 -104 -105 -106 107 -108 -109 -110 -111 -112 113 -114 -115 -116 -117 -118 -119 120 -121 -122 123 124 -125 126 127 128 -129 -130 131 132 133 -134 135 136 -137 -138 139 140 141 -142 143 144 -145 146 -147 148 149 -150 -151 152 153 -154 155 156 -157 -158 159 -160 -161 162 -163 164 -165 -166 -167 -168 -169 -170 -171 172 173 -174 -175 176 177 -178 -179 180 181 182 -183 184 185 186 187 188 189 -190 191 -192 -193 -194 195 196 -197 -198 199 -200 -201 -202 203 -204 -205 -206 207 -208 -209 -210 -211 -212 -213 -214 -215 -216 -217 -218 219 -220 221 222 223 224 -225 226 -227 228 -229 230 -231 -232 -233 -234 -235 -236 -237 -238 239 -240 -241 -242 243 -244 -245 246 -247 248 -249 250 -251 252 -253 254 255 256 -257 -258 259 260 -261 -262 -263 -264 265 266 267 -268 -269 -270 -271 272 -273 274 -275 276 -277 278 -279 280 281 -282 -283 -284 -285 -286 -287 288 289 290 -291 292 293 -294 295 -296 -297 -298 299 300 301 -302 -303 -304 305 -306 307 -308 309 310 311 312 313 314 -315 316 317 318 319 -320 321 322 -323 -324 -325 326 327 328 -329 -330 331 332 -333 -334 -335 -336 337 -338 -339 -340 341 342 343 -344 345 -346 347 348 -349 -350 351 -352 353 354 355 356 -357 358 359 -360 -361 -362 -363 -364 365 -366 -367 -368 369 -370 371 -372 -373 -374 -375 -376 377 -378 -379 -380 -381 382 -383 -384 385 386 387 388 389 -390 -391 -392 -393 394 -395 -396 -397 -398 -399 -400 -401 402 -403 404 -405 406 -407 408 -409 -410 411 412 413 -414 415 416 -417 -418 419 420 -421 -422 423 424 425 426 427 -428 -429 -430 431 432 -433 434 -435 436 437 438 439 -440 441 -442 443 444 445 446 447 448 449 -450 -451 452 453 -454 -455 456 -457 -458 459 460 -461 462 -463 -464 -465 -466 -467 -468 469 -470 -471 -472 473 -474 475 -476 477 478 479 480 481 482 483 -484 485 -486 -487 488 -489 490 -491 492 -493 -494 495 496 -497 498 -499 -500 501 -502 -503 504 505 506 -507 -508 509 -510 -511 -512 513 514 -515 -516 517 518 519 -520 -521 -522 523 -524 -525 -526 -527 -528 -529 -530 -531 -532 533 534 535 536 537 538 -539 -540 
0.89/0.93	v 0 
0.89/0.93	c Done (mycputime is 0.930 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1523934-1238587105/watcher-1523934-1238587105 -o /tmp/evaluation-result-1523934-1238587105/solver-1523934-1238587105 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523934-1238587105.cnf 1089642841 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 24718
/proc/meminfo: memFree=1554872/2055920 swapFree=4178472/4192956
[pid=24718] ppid=24716 vsize=451072 CPUtime=0
/proc/24718/stat : 24718 (Hybrid2) R 24716 24718 23974 0 -1 4194304 145 0 0 0 0 0 0 0 18 0 1 0 1131377447 461897728 129 1992294400 134512640 135106774 4294956240 18446744073709551615 134612774 0 0 4096 0 0 0 0 17 1 0 0
/proc/24718/statm: 112768 129 53 145 0 111644 0

[startup+0.0596439 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 24718
/proc/meminfo: memFree=1554872/2055920 swapFree=4178472/4192956
[pid=24718] ppid=24716 vsize=454972 CPUtime=0.05
/proc/24718/stat : 24718 (Hybrid2) R 24716 24718 23974 0 -1 4194304 202 0 0 0 5 0 0 0 18 0 1 0 1131377447 465891328 186 1992294400 134512640 135106774 4294956240 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 1 0 0
/proc/24718/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 454972

[startup+0.101648 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 24718
/proc/meminfo: memFree=1554872/2055920 swapFree=4178472/4192956
[pid=24718] ppid=24716 vsize=454972 CPUtime=0.09
/proc/24718/stat : 24718 (Hybrid2) R 24716 24718 23974 0 -1 4194304 202 0 0 0 9 0 0 0 18 0 1 0 1131377447 465891328 186 1992294400 134512640 135106774 4294956240 18446744073709551615 134527287 0 0 4096 0 0 0 0 17 1 0 0
/proc/24718/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454972

[startup+0.301671 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 24718
/proc/meminfo: memFree=1554872/2055920 swapFree=4178472/4192956
[pid=24718] ppid=24716 vsize=454972 CPUtime=0.29
/proc/24718/stat : 24718 (Hybrid2) R 24716 24718 23974 0 -1 4194304 202 0 0 0 29 0 0 0 19 0 1 0 1131377447 465891328 186 1992294400 134512640 135106774 4294956240 18446744073709551615 134518074 0 0 4096 0 0 0 0 17 1 0 0
/proc/24718/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 454972

[startup+0.701718 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 24718
/proc/meminfo: memFree=1554872/2055920 swapFree=4178472/4192956
[pid=24718] ppid=24716 vsize=454972 CPUtime=0.69
/proc/24718/stat : 24718 (Hybrid2) R 24716 24718 23974 0 -1 4194304 202 0 0 0 69 0 0 0 22 0 1 0 1131377447 465891328 186 1992294400 134512640 135106774 4294956240 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 1 0 0
/proc/24718/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 454972

Solver just ended. Dumping a history of the last processes samples

[startup+0.901742 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 24718
/proc/meminfo: memFree=1554872/2055920 swapFree=4178472/4192956
[pid=24718] ppid=24716 vsize=454972 CPUtime=0.89
/proc/24718/stat : 24718 (Hybrid2) R 24716 24718 23974 0 -1 4194304 202 0 0 0 89 0 0 0 24 0 1 0 1131377447 465891328 186 1992294400 134512640 135106774 4294956240 18446744073709551615 134528779 0 0 4096 0 0 0 0 17 1 0 0
/proc/24718/statm: 113743 186 56 145 0 112619 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 454972

Child status: 10
Real time (s): 0.9389
CPU time (s): 0.937856
CPU user time (s): 0.935857
CPU system time (s): 0.001999
CPU usage (%): 99.8888
Max. virtual memory (cumulated for all children) (KiB): 454972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.935857
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 220
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 1

runsolver used 0.004999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node1 at 2009-04-01 13:58:25
IDJOB=1523934
IDBENCH=70709
IDSOLVER=530
FILE ID=node1/1523934-1238587105
PBS_JOBID= 9070534
Free space on /tmp= 66132 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S23858409-056.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523934-1238587105/watcher-1523934-1238587105 -o /tmp/evaluation-result-1523934-1238587105/solver-1523934-1238587105 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523934-1238587105.cnf 1089642841

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 1d9e0ed32c3bf3bc5fbb21926c01a19c
RANDOM SEED=1089642841

node1.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.229
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.229
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1555352 kB
Buffers:         93644 kB
Cached:         307472 kB
SwapCached:       8380 kB
Active:         208904 kB
Inactive:       202192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1555352 kB
SwapTotal:     4192956 kB
SwapFree:      4178472 kB
Dirty:            4620 kB
Writeback:           0 kB
Mapped:          15800 kB
Slab:            75504 kB
Committed_AS:  3063848 kB
PageTables:       1440 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66128 MiB
End job on node1 at 2009-04-01 13:58:26